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Finding the Fourth Proportional to 251,065.62, 346,470.75 and 136,342.08

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Solution

The fourth proportional to 251,065.62, 346,470.75 and 136,342.08 is: 188,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,065.62 : 346,470.75 = 136,342.08 : x
  2. Step 2: Convert to fraction form
    251,065.62/346,470.75 = 136,342.08/x
  3. Step 3: Cross multiply
    251,065.62x = 346,470.75 × 136,342.08
  4. Step 4: Simplify right side
    251,065.62x = 47,238,542,714.16
  5. Step 5: Solve for x
    x = 47,238,542,714.16/251,065.62
  6. Step 6: Final answer
    x = 188,152.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.